html, body {
  height: 100%;
}
body {
  margin: 0;
}

#app {
  display: flex;
  height: 100%;
  flex-flow: column nowrap;
}

header {
  padding: 1px 40px;
  margin-bottom: 3px;
  min-height: 40px;
  background: #303133;
}
header span {
  color: #fff;
  line-height: 40px;
  font-weight: bold;
  font-size: 24px;
}
main {
  flex: 1;
  display: flex;
  padding: 5px;
}

.toolbar {
  min-height: 20px;
  margin-bottom: 3px;
  border-radius: 3px;
  background: #303133;
}
.toolbar span {
  line-height: 20px;
  font-size: 8px;
  color: #fff;
  margin-left: 5px;
}

.border-reset {
  border-radius: 3px;
  border: 1px solid #ccc;
}

.fill-remaining-space {
  flex: 1 0 auto;
}

.treemap-container .container rect:hover {
  stroke: #000;
}

.tooltip {
  transition: all 0.1s;
  position: absolute;
  padding: 5px;
  visibility: hidden;
  color: #fff;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 3px;
  font-size: 14px;
  white-space: nowrap;
}